Electric vehicle motor bridge

Abstract

An electric vehicle motor bridge, comprising a gearbox, a first motor, a second motor, a third motor, and a fourth motor; the first motor and the second motor are symmetrically arranged at two ends of one side of the gearbox, and the third motor and the fourth motor are symmetrically arranged at two ends of the other side of the gearbox; therefore, the gearbox, the first motor, the second motor, the third motor, and the fourth motor form an H-shaped symmetrically distributed bridge structure as a whole. The motor bridge of the invention adopts a completely symmetrical layout structure, so that the mass of the whole vehicle is evenly distributed and the center of gravity of the whole vehicle is reduced as much as possible, thereby greatly improving the safety of vehicle driving. It can be arranged with 4 motor boxes, so that the total endurance mileage exceeds 1,000 kilometers.

1 . An electric vehicle motor bridge, comprising a gearbox, a first motor, a second motor, a third motor, and a fourth motor;
 the first motor and the second motor are symmetrically arranged at two ends of one side of the gearbox, and the third motor and the fourth motor are symmetrically arranged at two ends of the other side of the gearbox; therefore, the gearbox, the first motor, the second motor, the third motor, and the fourth motor form an H-shaped symmetrically distributed bridge structure as a whole;   the first motor, the second motor, the third motor, and the fourth motor have the same structure;   a first battery box and a second battery box are provided between the first motor and the second motor, and a third battery box and a fourth battery box are provided between the third motor and the fourth motor; the first battery box, the second battery box, the third battery box, and the fourth battery box have the same structure; the first battery box and the second battery box, and the third battery box and the fourth battery box are symmetrically arranged along the transverse central axis of the gearbox; the first battery box and the fourth battery box are symmetrically arranged along the vertical center axis of the gearbox.   
     
     
         2 . The electric vehicle motor bridge of  claim 1 , wherein the first motor, the second motor, the third motor, and the fourth motor adopt permanent magnet synchronous motors with the same structure. 
     
     
         3 . The electric vehicle motor bridge of  claim 2 , wherein the first motor, the second motor, the third motor, and the fourth motor adopt a slender structure. 
     
     
         4 . The electric vehicle motor bridge of  claim 3 , wherein the ratio of the length to the diameter of the first motor, the second motor, the third motor, and the fourth motor is not less than 3:1.